winapi::um::winnt

Type Alias PTP_CLEANUP_GROUP_CANCEL_CALLBACK

Source 
pub type PTP_CLEANUP_GROUP_CANCEL_CALLBACK = Option<unsafe extern "system" fn(ObjectContext: PVOID, CleanupContext: PVOID)>;

Aliased Type§

enum PTP_CLEANUP_GROUP_CANCEL_CALLBACK {
    None,
    Some(unsafe extern "system" fn(_: *mut c_void, _: *mut c_void)),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: *mut c_void, _: *mut c_void))

Some value of type T.